Genius Grandson of the Loan Shark King

Genius Grandson of the Loan Shark King

Ongoing

사채왕의 천재손자

Mu-Hyeok Kim spent three decades as the loyal enforcer for his family's loan shark empire, the grandson of the infamous "Loan Shark King." His unwavering service ends not in reward, but in betrayal and murder, orchestrated by his own uncle.

He awakens in 1990, back in his teenage body during his first year of high school. Seizing this second chance, he immediately uses his future knowledge to save his paternal grandmother from a fatal heart attack. This act creates a new crisis: urgent hospital bills he cannot pay.

To secure the funds, Mu-Hyeok turns to the very organization that destroyed him—his maternal family's criminal enterprise. He intends to infiltrate their ranks once more, but his goal has radically changed. This time, he is not a loyal grandson but a man plotting to drain the King's fortune and exact a meticulous revenge for his past-life betrayal.

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